Tag Archives: PHYSICS

2020 Nobel Prize in physics awarded for work on black holes – an astrophysicist explains the trailblazing discoveries

A black hole is an object so compact that nothing can escape its gravitational pull, not even light. They are formed when stars die and start collapsing under their own weight. Deep inside the black hole resides an infinitely hot and dense object, a so-called, singularity. Science Photo Library - MARK GARLICK/Getty Images

A black hole is an object so compact that nothing can escape its gravitational pull, not even light. They are formed when stars die and start collapsing under their own weight. Deep inside the black hole resides an infinitely hot and dense object, a so-called, singularity. Science Photo Library – MARK GARLICK/Getty Images Gaurav Khanna, University of Massachusetts Dartmouth Black …

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A replaceable, more efficient filter for N95 masks AMERICAN CHEMICAL SOCIETY

ACS Nano 2020, DOI: 10.1021/acsnano.0c03976

Since the outbreak of COVID-19, there’s been a worldwide shortage of face masks — particularly, the N95 ones worn by health care workers. Although these coverings provide the highest level of protection currently available, they have limitations. Now, researchers reporting in ACS Nano have developed a membrane that can be attached to a regular N95 mask and replaced when needed. …

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